It appears that you're running an Ad-Blocker. This site is monetized by Advertising and by ">User Donations; we ask that if you find this site helpful that you whitelist us in your Ad-Blocker, or make a ">Donation to help aid in operating costs.

Hello,Well if anyone out there has any spare time to help me out I would greatly Appreciate it. I only have two questions1: What's a private Branch Exchange (what's it do where it's used)2: What is a trunk. Well thank you for time and again thank you. Till then....